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NVIDIA Quadro RTX A6000 vs AMD PowerColor Red Devil Radeon RX 6900 XT: Comparison
NVIDIA Quadro RTX A6000 and AMD PowerColor Red Devil Radeon RX 6900 XT separate most on vram: NVIDIA Quadro RTX A6000 at 48 GB, AMD PowerColor Red Devil Radeon RX 6900 XT at 16 GB, 67% in favour of NVIDIA Quadro RTX A6000. Slot Width splits them by another 50%, again favouring NVIDIA Quadro RTX A6000. They match on 4 other specifications, including tier, memory type and ray tracing support.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | NVIDIA | AMD |
| Series | RTX Ampere Generation | Radeon RX 6000 |
| Board Partner | NVIDIA Reference (workstation, no AIB partners) | PowerColor |
| VRAM | 48 GB | 16 GB-67% |
| Tier | Flagship | Flagship |
| Memory Type | GDDR6 | GDDR6 |
| Boost Clock | 1800 MHz-23% | 2340 MHz |
| Ray Tracing Support | true | true |
| TDP | 300 W | 300 W |
| Architecture | Ampere | RDNA 2 (Navi 21) |
| Card Length | 267 mm | 320 mm-20% |
| Slot Width | 2 | 3-50% |
| MSRP | 4650 | 999 |
Verdict
NVIDIA Quadro RTX A6000
7.9 / 10 Expert Rating
Still a genuinely useful 48GB workstation card on the secondhand market, even four years after launch - just expect a real gap versus current RTX PRO Blackwell cards in ray tracing and AI performance.
AMD PowerColor Red Devil Radeon RX 6900 XT
9 / 10 Expert Rating
A solid flagship pick if its price and 16GB VRAM allocation match your target resolution.
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